Hi Olsen,

I had the same problem (ubuntu 10.04 & pd-0.43-0).
This is what I did to solve it:

Remove the existing bin-folder of the previous version (pd-0.42-5 (vanilla));

$ sudo rm -r /usr/local/lib/pd/bin

install the new version;

$ cd ~pd/src/pd-0.43-0/src
$ ./configure --enable-jack
$ sudo make && make install

create a tcl-folder at /usr/local/lib/pd/
and copy pd-gui.tcl

$ mkdir tcl
$ sudo cp ~pd/src/pd-0.43-0/tcl/pd-gui.tcl /usr/local/lib/pd/tcl/

Pd started complaining about pd_connect so I decided to copy the whole tcl-folder.

$ sudo cp ~pd/src/pd-0.43-0/tcl/* /usr/local/lib/pd/tcl/

After that executing ``pd'' worked.

I hope this information might be helpful.

Funs